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-rw-r--r--include/asm-x86/page.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index b52ed85f32f5..28d7b4533b1a 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -61,6 +61,7 @@ extern void map_devmem(unsigned long pfn, unsigned long size,
extern void unmap_devmem(unsigned long pfn, unsigned long size,
pgprot_t vma_prot);
+extern unsigned long max_low_pfn_mapped;
extern unsigned long max_pfn_mapped;
struct page;
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